diff --git a/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp b/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
index 6758c2e2e9..df1c50b394 100644
--- a/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
+++ b/Userland/Libraries/LibDebug/Dwarf/LineProgram.cpp
@@ -170,7 +170,8 @@ void LineProgram::handle_extended_opcode()
     }
     case ExtendedOpcodes::SetDiscriminator: {
         dbgln_if(DWARF_DEBUG, "SetDiscriminator");
-        m_stream.discard_or_error(1);
+        size_t discriminator;
+        m_stream.read_LEB128_unsigned(discriminator);
         break;
     }
     default: